Main computer:
AMD Phenom II X4 940 @ 3.5GHz
2x 2GB DDR2 1066MHz OCZ Gold
ASUS Nvidia Geforce 460 GTX @ 900/1800/1960
OCZ ModXStream Pro 700W Silent Modular PSU
ASUS M3N78-VM Motherboard
2x 512GB 7200rpm HDDs in RAID0
1x 1TB 7200rpm HDD
All in a Cooler Master HAF 932 case (which is ****ing enormous)
EDIT found an old pic to show size, on the right is my computer, on the left a typical system from a computer store
EDIT2: Forgot OS: Windows 7 Ultimate & Ubuntu dual boot, also have several other OS in VMs